Manufacture of fabrics



UNITED STATES PATENT OFFICE.

MAX ROSENS'I'OCK, OI PA'IERSON, NEW JERSEY.

umrnc'runr. or FABRICS.

110 Drawing.

To all whom it my concern:

Be it known that I, MAX Rosnns'rocx, a citizen of the United States, residin at Paterson, in the county of Passaic and tate of New Jersey, have invented certain new and useful Improvements in the Manufacture of Fabrics, of which the following is a specification.

This invention relates to that class of silk fabrics, and particularly crapes, in which a crape or crinkled effect is produced b putting a high or crape twist in the sil am and after the piece is woven treating it 1n the process of dyeinlg to a boiling-off bath whereby to cause a s rinkage of the thus high-twisted yarn, so that it will be left craped or crinkled in the piece. In has heretofore been impossible by any known method to produce a 'ci'ape or the like silk fabric that wouldhave the ver much desired changeable-color efiect, ecause the craping or crinkling depends on the shrinkage taking place in the piece, and if the yarn were first subjected to the dyeing process so as to be dyed in different colors, to be then woven into a fabric, the shrinkage would not only have about, if not altogether, expended itself before weaving but the craping or crinkling which it produces would betaken out of it in the weaving process as the re-. sult of tension exerted thereon in the loom.

The object of this invention is to produce a fabric of the class indicated which will give a changeable color efi'ect.

To this end I fast-dye a part of the silk yarn which is to compose the fabric. Usually the dyeing of this part of the yarn will shrink it; but my invention is not concerned I with or dependent upon any shrinking or non-shrinking of this part of the yarn.

The thus fast-dyed part of the yarn is then interwoven with the remaining part of the silk arn which is to be woven into the fabric. ut this remaining part of such silk yarn is a yarn which when boiled-off will undergo shrinkage, preferably by being high-twisted so that a good craping or crinkling thereof will be an incident of the shrinkin The ffioric is then subjected to a boilingofl' treatment. Or I may proceed further and then subject the fabric to a dye bath of a different color form that which the first part of the yarn was dyed; The boiling-01f to specification of Letters Patent. Patented Jan. 25, 19 21.

Application flled June a, 1920. Serial 110.888,!263.

which the fabric or piece is treated will shrink the second part of the yarn, thus producing the desired crape or crinkled efiect in the finished fabric.

As the result of this treatment two effects will be produced in the fabric: First, .the boiling-off to which the fabric or piece is treated will shrink the second part of the yarn,thus producing the desired crape or crinkled effect in the finished fabric. Second, the fabric will possess the desired changeable-color effect, because the first part of the yarn is dyed part 0 the yarn has another color-that is, either its natural color or the color which is imparted thereto when, following the boiling-off, the fabric or piece is subjected to a dye bath, as explained. The dye of this latter dye bath will not affect, that is, color,

I, the first part of the yarn, because this yarn was fast-dyed and so will take no more dye.

It will be understood that the weaving is done in some usual way so as to produce the changeable-color effect incident in changeable-color fabrics to the yarns of different colors both coming to one face of the fabric and appearing intermingled at such face and so that one will be visually the more prominent from one point of view and the other visually the more prominent from another point of View of said face of the fabric, as by weaving in one of the aforesaid parts of the yarn as warp and the other of said parts as weft.

I do not wish to be restricted to the specific procedure herein set forth, what I claim being:

1. The hereindescribed method of producing a changeable-color crape-like silk fabric which consists in fast-dyeing silk yarn a given color, then weaving such yarn with other silk yarn capable of shrinkage and so as to produce a fabric in which both such yarns will come to' one face thereof intermingled with each other but one will be visually the more prominent from one point of view and. the other visually the more prominent from another point of view of said face of the fabric, and then shrinking said other yarn in the fabric.

2. The hereindescribed method of producing a changeable-color crape-like silk fabric which consists in fast-dyeing silk yarn a given color, then weaving such yarn with one color and the second other silk yarn which Will shrink in a. boiling-ofi treatment and so as to produce a fabric in which both such yarns will come to one face thereof intermingled with each 5 other but one will be visually the more prominent from one point of View and the other visually the more prominent from another point of view of said face of the fabric, and then subjecting the fabric to a, boiling-off process, whereby to shrink said 10 other yarn.

In testimony whereof I aflix my signature.

MAX ROSEN STOCK 

